I have got several emails over the year stating: "Dear Professor, It's so nice to contact you through this email. I have tried to get in touch with you to see if there is a mutual fit between our journal and your research work... I believe in you that your eminent manuscript brings out the best citation to our Journal."
This was for a journal and a subject I have absolutely nothing to do with. If they really would know that my manuscripts are eminent, they would also know that my field of subject is something different. To me it seems they just harvest researchers emails and send "is it possible for you to support us with your transcript for this issue"-emails with deadlines of only a couple of days and hoping to catch a desperate researcher whose job depends on publishing a paper very soon. The review by "Samuel C." just confirms that any serious publisher do not rush the publication process like that; and of course they found errors in the text immediately - just look at the poor English of Samuel C's review. The other 5-star reviews seem to to come directly from staff at Juniper publishers.